CA3052201A1 - System and associated method for online detection of small defects on/in a glass sheet - Google Patents
System and associated method for online detection of small defects on/in a glass sheet Download PDFInfo
- Publication number
- CA3052201A1 CA3052201A1 CA3052201A CA3052201A CA3052201A1 CA 3052201 A1 CA3052201 A1 CA 3052201A1 CA 3052201 A CA3052201 A CA 3052201A CA 3052201 A CA3052201 A CA 3052201A CA 3052201 A1 CA3052201 A1 CA 3052201A1
- Authority
- CA
- Canada
- Prior art keywords
- glass sheet
- background screen
- camera
- conveyor
- image data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 184
- 230000007547 defect Effects 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims description 18
- 238000001514 detection method Methods 0.000 title abstract description 12
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims description 61
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000414 obstructive effect Effects 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 abstract description 15
- 238000007689 inspection Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000005496 tempering Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000003708 edge detection Methods 0.000 description 2
- 238000007496 glass forming Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- -1 roll marking Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
- C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
- C03B29/08—Glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/20—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames
- C03B35/202—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames by supporting frames
- C03B35/205—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames by supporting frames the glass sheets being in a vertical position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8829—Shadow projection or structured background, e.g. for deflectometry
- G01N2021/8832—Structured background, e.g. for transparent objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod
- G01N2021/8962—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod for detecting separately opaque flaws and refracting flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
- G01N2021/9586—Windscreens
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
- G06V10/478—Contour-based spectral representations or scale-space representations, e.g. by Fourier analysis, wavelet analysis or curvature scale-space [CSS]
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/428,401 US10267750B2 (en) | 2017-02-09 | 2017-02-09 | System and associated method for online detection of small defects on/in a glass sheet |
US15/428,401 | 2017-02-09 | ||
PCT/US2018/017397 WO2018148391A1 (en) | 2017-02-09 | 2018-02-08 | System and associated method for online detection of small defects on/in a glass sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
CA3052201A1 true CA3052201A1 (en) | 2018-08-16 |
Family
ID=63037109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA3052201A Pending CA3052201A1 (en) | 2017-02-09 | 2018-02-08 | System and associated method for online detection of small defects on/in a glass sheet |
Country Status (12)
Country | Link |
---|---|
US (1) | US10267750B2 (zh) |
EP (1) | EP3580551A4 (zh) |
JP (1) | JP7188774B2 (zh) |
KR (1) | KR102565812B1 (zh) |
CN (1) | CN110268252A (zh) |
BR (1) | BR112019016366B1 (zh) |
CA (1) | CA3052201A1 (zh) |
MX (1) | MX2019009365A (zh) |
RU (1) | RU2763417C2 (zh) |
TW (1) | TWI767990B (zh) |
WO (1) | WO2018148391A1 (zh) |
ZA (1) | ZA201905837B (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
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US10187542B1 (en) | 2015-12-19 | 2019-01-22 | Ripcord Inc. | Integrated physical warehouse and digital document management system |
EP3751832A1 (en) | 2015-12-19 | 2020-12-16 | Ripcord Inc. | Systems and methods relating to document and fastener identification |
KR102499831B1 (ko) * | 2016-05-23 | 2023-02-14 | 코닝 인코포레이티드 | 글라스 시트의 무중력 형상 예측 방법 및 무중력 형상 기반 글라스 시트 품질 관리 방법 |
KR20200031067A (ko) | 2017-03-21 | 2020-03-23 | 립코드 인크. | 문서 디지털화를 위한 다중-시트 핸들링 |
EP3603044A4 (en) | 2017-03-21 | 2020-12-23 | Ripcord Inc. | SYSTEMS AND PROCEDURES FOR IDENTIFYING AND TRANSFERRING ARCHES |
US20220112116A1 (en) * | 2018-09-19 | 2022-04-14 | Corning Incorporated | Glass sheet processing apparatus and method |
CN109684875A (zh) * | 2018-11-30 | 2019-04-26 | 深圳灵图慧视科技有限公司 | 布料检测记录方法、装置、设备及存储介质 |
CN109520430A (zh) * | 2018-12-03 | 2019-03-26 | 中国建材国际工程集团有限公司 | 用于浮法玻璃厂过渡辊台的伸臂内窥式玻璃板宽监测系统 |
US11205259B2 (en) * | 2019-01-28 | 2021-12-21 | Future Dial, Inc. | Enhanced automatic cosmetic grading |
CN110996074B (zh) * | 2020-01-04 | 2021-03-16 | 盛广济 | 幕墙玻璃爆裂分区监控方法 |
CN110967349B (zh) * | 2020-01-04 | 2022-12-13 | 光阱(北京)科技有限公司 | 幕墙玻璃爆裂主动监控方法 |
CN112113512A (zh) * | 2020-08-19 | 2020-12-22 | 信义汽车部件(天津)有限公司 | 一种汽车玻璃外轮廓确定方法及其确定装置 |
US11650126B2 (en) * | 2020-09-22 | 2023-05-16 | Indizen Optical Technologies S.L. | Systems and methods for automatic visual inspection of defects in ophthalmic lenses |
CN112268174B (zh) * | 2020-10-22 | 2022-07-05 | 陕西世和安全应急技术有限公司 | 一种安全生产线图像检测识别装置及方法 |
CN112665522B (zh) * | 2020-10-27 | 2022-08-19 | 东莞南玻太阳能玻璃有限公司 | 一种浮法玻璃在线弯曲度实时监测装置及测试方法 |
CN113353368B (zh) * | 2021-05-27 | 2023-01-24 | 芜湖东旭光电科技有限公司 | 玻璃基板包装质量监控方法及系统 |
CN113405483B (zh) * | 2021-06-16 | 2023-02-14 | 彩虹(合肥)液晶玻璃有限公司 | 一种玻璃基板翘曲缺陷在线检测装置 |
US20230212056A1 (en) * | 2022-01-06 | 2023-07-06 | Cardinal Ig Company | Self-correcting haze parameters in a glass tempering system |
Family Cites Families (36)
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US4149784A (en) * | 1977-01-13 | 1979-04-17 | Bell & Howell Company | Roll film reader/printer with manually insertable discrete film |
GB2193709B (en) * | 1986-07-28 | 1989-12-13 | Libbey Owens Ford Co | Apparatus for aligning glass sheets in a production line |
JPH07120402B2 (ja) | 1990-09-10 | 1995-12-20 | 三菱電機株式会社 | 非接触型情報カード |
JP3520516B2 (ja) * | 1992-09-17 | 2004-04-19 | セイコーエプソン株式会社 | 液晶ディスプレイ用カラーフィルタ |
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JPH0720059A (ja) * | 1993-06-30 | 1995-01-24 | Asahi Glass Co Ltd | 透視歪の測定方法および装置 |
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JPH07229852A (ja) * | 1994-02-18 | 1995-08-29 | Matsushita Electric Works Ltd | 透光性を有するシート材の外観検査装置 |
JPH0915169A (ja) * | 1995-07-03 | 1997-01-17 | Canon Inc | 透明シート検査装置 |
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JPH11211666A (ja) * | 1998-01-26 | 1999-08-06 | Kokusai Gijutsu Kaihatsu Kk | 光学検査装置 |
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US8049879B2 (en) * | 2008-04-15 | 2011-11-01 | Glasstech, Inc. | Method and apparatus for measuring transmitted optical distortion in glass sheets |
FR2936605B1 (fr) * | 2008-10-01 | 2014-10-31 | Saint Gobain | Dispositif d'analyse de la surface d'un substrat |
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KR102226634B1 (ko) * | 2014-05-15 | 2021-03-10 | 이미지 비전 피티이. 리미티드 | 안과 렌즈 검사 시스템 및 방법 |
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JP6156411B2 (ja) * | 2015-02-26 | 2017-07-05 | 日本電気株式会社 | 外形検出システム |
US10851013B2 (en) | 2015-03-05 | 2020-12-01 | Glasstech, Inc. | Glass sheet acquisition and positioning system and associated method for an inline system for measuring the optical characteristics of a glass sheet |
TWI572859B (zh) * | 2015-07-23 | 2017-03-01 | 台達電子工業股份有限公司 | 電子元件外觀檢測裝置及其檢測方法 |
US10531064B2 (en) | 2016-04-15 | 2020-01-07 | Canon Kabushiki Kaisha | Shape reconstruction using electronic light diffusing layers (E-Glass) |
-
2017
- 2017-02-09 US US15/428,401 patent/US10267750B2/en active Active
-
2018
- 2018-02-08 KR KR1020197024822A patent/KR102565812B1/ko active IP Right Grant
- 2018-02-08 CN CN201880010907.2A patent/CN110268252A/zh active Pending
- 2018-02-08 WO PCT/US2018/017397 patent/WO2018148391A1/en unknown
- 2018-02-08 TW TW107104533A patent/TWI767990B/zh active
- 2018-02-08 EP EP18751937.6A patent/EP3580551A4/en active Pending
- 2018-02-08 CA CA3052201A patent/CA3052201A1/en active Pending
- 2018-02-08 BR BR112019016366-2A patent/BR112019016366B1/pt active IP Right Grant
- 2018-02-08 RU RU2019126745A patent/RU2763417C2/ru active
- 2018-02-08 JP JP2019542517A patent/JP7188774B2/ja active Active
- 2018-02-08 MX MX2019009365A patent/MX2019009365A/es unknown
-
2019
- 2019-09-04 ZA ZA2019/05837A patent/ZA201905837B/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3580551A1 (en) | 2019-12-18 |
ZA201905837B (en) | 2021-02-24 |
RU2019126745A3 (zh) | 2021-06-22 |
BR112019016366A2 (pt) | 2020-04-07 |
CN110268252A (zh) | 2019-09-20 |
BR112019016366B1 (pt) | 2024-01-02 |
TW201833536A (zh) | 2018-09-16 |
MX2019009365A (es) | 2020-02-05 |
KR20190128049A (ko) | 2019-11-14 |
US10267750B2 (en) | 2019-04-23 |
US20180224381A1 (en) | 2018-08-09 |
JP2020506392A (ja) | 2020-02-27 |
TWI767990B (zh) | 2022-06-21 |
JP7188774B2 (ja) | 2022-12-13 |
EP3580551A4 (en) | 2020-12-16 |
RU2763417C2 (ru) | 2021-12-29 |
WO2018148391A1 (en) | 2018-08-16 |
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KR102565812B1 (ko) | 2023-08-14 |
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